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Ptolemy Example with Regular Pentagon (Mr. T's Math Videos) View | |
Golden Ratio in regular pentagon (Shivangi Singh) View | |
Pentagons and the Golden Ratio - Numberphile (Numberphile) View | |
Ratio of Areas of Regular Pentagon to smaller Pentagon (John Kim) View | |
Ptolemy and Trigonometry, Part One (Jeff Suzuki: The Random Professor) View | |
HOW THE GOLDEN NUMBER IS BORNED IN THE REGULAR PENTAGON (GEOMETRY LOVES ALGEBRA) View | |
Regular Pentagons and the Golden Ratio (Ieuan Pearse) View | |
Ptolemys Theorem (Mr. T's Math Videos) View | |
Golden ratio in pentagon proof, a fractal (Iris Yazıcı) View | |
A New Proof of Ptolemy's Theorem (Math from Alpha to Omega) View |